Polaris 2002 manual 166

TROUBLESHOOTING

Engine Troubleshooting

Problem	Probable Cause	Solution
Engine turns	Faulty ignition	-Remove spark plug(s) and replace with new
but fails to start		plug(s). If engine still fails to start, check for
		spark; if no spark SEE YOUR DEALER.
	No fuel to engine	-Make sure the fuel valve is “ON”. Check
		tank level and fill up with correct fuel.
		-Ice in fuel line, filter, or pump. On the stan-
		dard Polaris carburetor, the choke will not
		function with the throttle depressed. See se-
		cond item under “Probable Cause” of “En-
		gine continually backfires”.
	Flooded engine	-Hold throttle open, crank engine several
	(normal situation	times (may be necessary to change plug(s),
	caused by too much	however, the plug(s) may operate satisfactori-
	choking)	ly when dried).
	Poor engine com-	-Running too lean a mixture (too small a
	pression	main jet will cause seizure resulting in loss of
		power). SEE YOUR DEALER. This indi-
		cates a major engine problem that must be
		repaired before engine is run.
Engine lacks	Fouled or defective	-Change and test operation.
power	spark plug
	Fuel filter (loss of	-Check fuel filter flow. Disconnect hose and
	high RPM power)	drain about 1/2 cup. Fuel flow should be
		steady and encompass the entire diameter of
		fuel line. If not, replace filter.
	Incorrect clutching	-SEE YOUR DEALER.
	Carburetor and fuel	-There’s no adjustment to change power out-
	pump	put. SEE YOUR DEALER.
Engine	Faulty plug(s)	-Change plug(s)
continually	Carburetor	-Dirt or ice in fuel system. (Deicer should be
backfires
		added to fuel at all times for assurance
		against fuel line icing.)
Engine requires	Poor gasoline or	-Replace with fresh winter fuel.
more than	not enough fuel
normal pulls to	getting to engine
start

166